Moen, R., M. A. Olsen, Ø. E. Haga, W. Sørmo, T. H. Aagnes Utsi, and S. D. Mathiesen. 1998. “Digestion of Timothy Silage and Hay in Reindeer”. Rangifer 18 (1):35-45. https://doi.org/10.7557/2.18.1.1444.